Oilfield Training Center

Course Details

Gas Tester Awareness





This course is suitable for any oil and gas personnel working in the presence of toxic and flammable gases or where there may be a lack of oxygen.


  • Be able to survey areas for potentially flammable or toxic gases using the detection equipment available
  • Be able to survey areas and verify suitable oxygen levels
  • Be aware of the capabilities and limitations of flammable gas test equipment
  • Appreciate the requirements of Permit to Work procedures and specified requirements relating to gas testing

Course Competency Assessment


  • The need for risk assessment
  • Introduction
  • Confined space criteria
  • The hazards of operations within an oxygen deficient, toxic or flammable environment
  • Carrying out a suitable and sufficient risk assessment
  • Using safe systems of work
  • The implications of organisational and statutory requirements
  • Interpreting operational requirements
  • Selecting and using PPE and RPE
  • Working within the Permit to Work system
  • Gas detector pre-start checks
  • Calibrating the instruments used in atmospheric testing
  • How to set up the relevant detector for each gas testing application
  • The behaviour of different flammable and toxic gases
  • The range and frequency of tests
  • Acceptable levels of flammable and toxic gases
  • Performing gas tests in sequence
  • Obtaining a representative atmosphere sample
  • Monitoring and retesting
  • Where to site ongoing monitoring equipment
  • Interpreting and documenting the results
  • The operating principles of atmosphere monitoring and measuring equipment

Course Format

  • PowerPoint presentation
  • Discussion/Class exercises
  • Hand-outs


Equipment Required


Designed For

This programme is designed to meet the initial onshore training and knowledge assessment requirements for personnel preparing to work as Authorised Gas Testers and is required for those involved with performing a test for oxygen, flammable and toxic gases up to and including working in confined spaces.